Vulnerability scanningVulnerability scanning is the process of actively determine the vulnerability of computer systems on the network. Typically, a first vulnerability scanners determine the operating system and the version number, which includes the Service Pack can be installed. Then, the scanner of vulnerabilities identified the weaknesses, flaws in the operating system.During the attack, a hacker can exploit those weaknesses to gain access to the system.An intrusion detection system (IDS) or a sophisticated security network professional with the right tools can detect the activity of port-scanning. The TCP/IP port scan detectors looking for open ports and IP addresses, and the crater can usually be detected, because the scanner must interact with the target system on the network.
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